the answer is a
(context) There was an abundance of trees along riverbanks where sawmills were established.
(more context) I also took the test
There are multiple reasons for the variations in type, quality, and quantity in minerals, such as:
- place of formation, on the surface, or inside the ground and how deep inside.
- pressure; extremely important for the structure of the minerals as well as the mixing of mineral types.
- temperature; similar to the pressure, in fact in combination with it, affects the structure of the minerals.
- tectonic activity and volcanic activity; cause the other factors and are also responsible for the quantity of minerals.
Because it is the coldest contintent on earth :)
Answer:
D. trade
Explanation:
because trade seems to be the answer to everything
